[Bug 105010] [CI] igt at perf_pmu@rc6-runtime-pm*- fail - Failed assertion: (double)(idle - prev) <= (1.0 + (tolerance)) * (double)(slept) && (double)(idle - prev) >= (1.0 - (tolerance)) * (double)(slept) (perf_pmu:1745) CRITICAL: 'idle - prev' != 'slept' (2292681666.000

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105010

--- Comment #11 from Chris Wilson <chris at chris-wilson.co.uk> ---
Saying it fails every time is a bit of an overstatement. It's just a counter
error across a sleep. We know that it may be the any of the sleep time, rc6
counter, or pm suspend time that may be adrift. The test is using our bkm of
measuring its own sleep and pmu interval, so hopefully that just means its the
combination of rc6 plus suspend time that's going wrong.

It's not a crucial feature of the driver, and under reporting rc6 time is far
better than over!

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